Finding the Fourth Proportional to 78,076.68, 107,745.06 and 42,265.77

Step by Step Solution

1. Step 1: Write the proportion equation
   78,076.68 : 107,745.06 = 42,265.77 : x
2. Step 2: Convert to fraction form
   78,076.68/107,745.06 = 42,265.77/x
3. Step 3: Cross multiply
   78,076.68x = 107,745.06 × 42,265.77
4. Step 4: Simplify right side
   78,076.68x = 4,553,927,924.60
5. Step 5: Solve for x
   x = 4,553,927,924.60/78,076.68
6. Step 6: Final answer
   x = 58,326.35